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Ultrasonic self-cleaning catheter system for indwelling drains and medication supply

  • US 4,698,058 A
  • Filed: 10/15/1985
  • Issued: 10/06/1987
  • Est. Priority Date: 10/15/1985
  • Status: Expired due to Term
First Claim
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1. A self-cleaning indwelling catheter system for enhanced nonsurgical protracted transfer of fluid between a patient'"'"'s body and a point outside such patient'"'"'s body, comprising:

  • an indwelling catheter particularly adapted for such nonsurgical protracted transfer of fluid between such patient'"'"'s body and a point outside such patient'"'"'s body;

    at least one orifice that is defined near the proximal end of the catheter and that is subject to the presence of undesirable substance within the orifice or on the catheter at the orifice, or both, during such nonsurgical protracted transfer of fluid;

    a source of mechanical disintegrating vibration; and

    means for conveying the disintegrating vibration from the source to the orifice and concentrating the disintegrating vibration at the orifice to disintegrate the undesirable substance and so maintain such nonsurgical protracted transfer of fluid relatively free from obstruction and contamination by the undesirable substance;

    whereby the source and conveying means cooperate to prevent blockage of, or infection at, said catheter, or both, and to facilitate and enhance the nonsurgical protracted fluid-transfer purpose of the indwelling catheter.

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